Friction draft-rigging for railway-cars.



2l SHEETS-SHEET 1.

Patented. NOV. 4, 1913.

J. P. OCONNOR. PRIGTION DRAFT RIGGING FOR RAILWAY GARS. APPLICATION FILED Mns, 1907.

J. F. OGONNORl PRIGTION DRAFT BIGGING PoR RAILWAY GARS.

A-BPLIGATION FILED HAY 8, 180?.

PatentedNov. 4, 1&913.

. 2 sums-snm z.

vnally arranged spring,

JOHN F. OCONNOR, OF CHICAGO,

ILLINOIS, Assienon, BY MESNE ASSIGNMENTS, To

WILLIAM- H. MINER, OF CHICAGO, ILLINOIS.

FRICTION DRAFT-HIGGING RAILWAY-CARS.

normes.

To all cli/1.0m if may conc-cm Be it known that I, JOHN F. OCoNNon, a citizen of the United States, residing. in Chicago, in the county of (look and State of Illinois, have invented a nciv and useful Improvement in Friction Draft-Rigging for Railway-Cars, of Which the following is a specification.

My inif'cntion'relates to friction ging for railway cars.

The object of my invention is to provide a draftrigging of a simple, strong, safe, etiicicnt and durable construction, having both a direct acting spring cushioning memeilongitudinally arranged in\thc line of thc draw-bar, and also frictional cushioning devices with longitudinally extending friction faces parallel to the draw-bar, and cooperating With the direct acting longitudi- (tlie same comprising a` longitudinally movable friction shell, sliding,l friction blocks Within the shell and a Wedge betweenv the frictionblocks) and by which the, objections heretofore experienced from the Wedge and friction devices sticking and acting with uncertainty and irregularity, and thus reducingthe effective cusliioning action of the friction devices, may be practically overcome, and also by which the tendency of the friction shell, which incloses the friction blocks and the spring, to' be-v come shortened under blows or hammering action of the draw-bar may also be entirely draft rig- `obviated, andl wherein also the Wedge,fric

tion blocks and spring. may all Abe held permanently assembled Within the friction shell.

My invention consists in the means I employ to practically accomplish this'objec't or result. That is to say, it consists in connection With` the draw-bar and its yoke, front front and rear followers, a`

and rear stops, direct acting longitudinallyarranged spring', a longitudinally movable friction shell fitting;r within the draw-bar yoke and having a longitudinally extending iiiterior friction face` a plurality of cooperating friction blocks having longitudinally extendimgi eX- terior friction faces in slidingT frictional cn- `s ,i'agement with the interior friction face ot` said shell and arranged in thel line of the draw-bar, and engaging at one end of the longtudinallly arranged direct acting sp'ring, a Wedge bcti'vepn said friction blocks and eo- Specification of Letters Patent. Application filed May 8, 1907'.- S'erialNo. 3722597.

operating- With the Wedging faces thereof und interposed between the draw-bar and? the friction blocks, anti-friction rollers interposed 'between' th'c inclined-faces of the Wedge and the inclined faces of the frictionblocks, the Wedge and friction blocks having/cooperating shoulders to keep the anti'- ina a rollingf action onr both the- Wedge and friction blocks, diametrically through the friction shell and engaging the shoulders on the friction blocks to hold the friction blocks Within the shell, the cooperating shoulders on the Wedge and the friction blocks whichengage the anti-friction rollers serving to hold the 'being provided at its end with a nead to close the same and confine the spring With- -in the shell in its assembled position; and intermediate stops on the car frame adapted vto engage the followers land limit their movement, and thus or hammering action of the draw-bar' from compress the spring solid.

It further consists in connection with these which arepreferably of cylindrical form to keep the same laterally in position, said guides being secured to, the shell preferably by the rivet Which extends throughv the same tovhold'the friction blocks in place Within the shell.

My invention further consists in the'novel construction of' parts and devices, and in the novel combinations of' parts and. devices herein shown and'desc'ribed.

In the accompanying drawingr forming a part of this specification, Figure l is a central vertical longitudinal section of' a direct actingfriction spring draft' rigging embodyingt my invention. Fig. 2 is a plan viewpartly in horizontal section. Fig. 3 is a. cross section on li'ne 3-3 of Fig. 1. lig'. 4 is a section on line 4 4 of Fig. l. Figs.- 5 and 6 are detail plan views of the wedge and friction block.

sills or other frame pieces of thecar to which the draft ,rigging'is' applied; B 1s the draw-bar, B1 its yoke, C a longitudinally arranged direetacting'draft rigging4 spring, 4c a smaller springvvhich is preferably ema pin or rivet extending' `tending to shorten the friction shell or to' parts, of guides secured to the friction shell Tn the,draiving, A represents the center.

Patented Nov. 4g, 1913.

. friction rollers in place, and the rollers hav- Wedge Within the shell, and the friction shell preventing the blows ployed within the spring against the inner faces of the intermediate stop castings D2 D3, the stops D2 ll" being preferably iliade in one piece or casting. -ln the drawing, l have illustrated the front and rear stops l) Dl in separate pieces from C, D D1 front D2 l)n intermediate stops, "rear followers.

movable' friction and rear stops, E ll fro-nt and l? is the longitudinally shell, preferably cylindrical in form, hav- 5 ing an interior. longitudinally extending the intermediate stops D2 DP', but; all these friction face stops or abutment shoulders may be made `in G (if. are longitudinally inovahle friction onestop casting, if preferred, '.l`lie friction blocks within the shell F rnd having longiblocks (l preferably have chilled or har'- tildinally extending exterior friction faces dened pei-tions y extending preferably to g g in sliding frictional engagement' with the depth of a quarter inch or such matter the interior friction face of vthe friction 'from the friction fai-wi and wearing portions shell l?. i of the friction blocks As each friction Grl is the wedge between y the .friction block (i has only one stop or roller engaging blocks G Gr. The friction blocks (i have inshoulder loithe anti-friction roller lil, the clined or ivedging faces g1 which cooperate roller is tlins free to turn with a rolling ac- \i'itli the corresponding inclined or Wcdgiiig tion or movement on the friction bloclijand faces g2 of the wedge G1 and the interposed as the eoperating wedge block @iv1 also has friction rollers H which have a rolling con- 0n nach of 'ts inclined or wedgingfaeeg only 2G tact on the wedging faces g1 q2 of both lh@ one stop shoulder for the-roller ll to engage, friction .blocks G Gr and the Wedge Gr 't0 it leaves the rollers` free lo tiiiii with a rollprevent any tendency of the wedges and ing movement on the inclined or wedging' friction blocks from sticking. The friction faces of tlm Wedge 150, The ,mlm-S ll H blot-hs G Gr are also furnished with curved the@ have u, f1-Owning Op antilla-'Miou my- Shoulders g Wlllfh COPGIM@ With. COI'l'G- tion in cooperation with the wedge and fricspendingshoulders gf on the Wedge G1 t0 tion blocks, and thus cause-the friction dehold or keep the anti-friction rollers H H vices to act with certainty and eli:.iency and .in place WllllC l'lClIllttmg the 52ml@ t0 IOll reliability and 'Without danger of sticking, 'IGcly 011 lllQ I HCllIlefl 01 Wedgmg 21065 and as in my improved friction draft rigg1 g2 of the friction blocks G and Wedge G1- ging, intermediate stops are provided to I The friction hlOClS G 2110 furthe? povlded limit the movemeiitof the followers and the with retaining shoulders g'f, Which engage operation of the springs independent of the a transversely extcndmg pm 0I' llVG K S@- longitudinally movable friction shell F, this cured to the friction Shell F and Mlplefl t0 friction shell is entirely relieved and pro- A engage Sad Shoulders 95 0n the UCOU ltected from the blows of the draw-bar and blocks Cf when the spring Gis expanded to prevented from being upset, compressed or its full extent, tlins preventing the friction shortened in lngth thereby t blocks Gr from being entirely removed from M is the lower tie or guide plate which the friction shell F. supports and guides the friction shell as C 'lille COlGl'l'mg Shoulders 94 0U the Well as the draw-bar extension or volte B1 wedge G1 which engage the anti-flitlOD and the draftV rigging as a Whole. 'This tie rollers H in connection With tl ie roller en- 01- guide plate is preferably furnished with gdglllg Shoulders g3 0H 'd10 flCtlOn lllOCkS a central longitudinal channel m to receive also hold the Wedge G1 in its assembled pOS- the lower limb or member of the drawbar tion within the shell F. The friction blocks yoke, and with eoncavely curved guide faces G and Wedge G1 are also preferably fiirm1 to receivelfeed and guide elle friction nis'hed with longitudinal parallel faces g g7 Shell F, Thel tie-plat@ M also has wings or and tapering faces g5 rg". 'lO keep lll@ flanges m2 provided with shoulders m3 to spring C and spring c in their assembled engage the lower flanges a of the center sills 5@ position Within the shell F, said shell 1S p10- or other stationary parts to which the guide 'vided with a head F1 closing the same, pref 0r tie plate M is secured by its bolts mtl erably of a cap shape, and secured in place The Wedge faces or lnclins g1 on. the by rivets f2 after the wedge G1, frictiony 'friction blocks and g2 g2 on the Wedge block blocks (i Gr, antifriction rollers H H and G1 are preferably at angles of about fortysprings C c have been inserted within the live dggree5- i i shell F. U As in my invention the Wedge G1 has an T0 keel? tlm SllClll l11 from turning and l0 antifriction roller on each facie thereof inguide it latprally and maintain it in its triie tel-posed between it and the adiacent frie- Central DOSIOI'i ln lllC lin@ O'f fllfllt, it is ltion blocks Gr` the Wedge Gl has no frictional 50' provided with external guides lf2 F2. one on engagement lwith either of the friction each side, the inner face f3 of which is curved to lit the shell l?, and which are preferably secured to the shell byl the pin or rivet l which extends diametrically through the shell. These shell guides F2 fit blocks or other parts, and thus is entirely fr eo .to retract .or release the moment rthe pressure of the draw bai' thereon is reymoved, the Wedge G1 thus being to all intents and purposes an antifriotion Wedge.

I claim regeln a friction draft rigging, the combination with the draw-bar, yoke, followers, front and rear stops for the followers, of a longitudinally movable friction shell, longitudinally movable friction blocks'inside said shell, a Wedge block between said friction blocks, a longitudinally arranged spring acting at one end against said friction 10 blocksand at its other end against said frio,-

tion shell, and a pin extending through said friction shell normally in engagement with said friction blocks, said friction blocks having retaining shoulders normally engaging said4 pin and arranged toprevent the spring from forcing the friction blocks out of the casing, substantially as specified.

2. In a friction draft rigging, the combination with the draw-bar, yoke, followers,

v front and rear stops for the followers, of a longitudinally movable friction shell, longi-f tndinally movablefriction blocks inside said said pin and arranged to prevent the spring from forcing the friction blocks out of the casing,and guides on the exterior of said' shell located centrally, vertically thereof on opposite sides, said guides being secured to the shell by said pin, substantially as described.

JOHN F.. CONNUR.

Witnesses: v

EDMUND Anacon, PEARL ABnAMs. 

